Why do brothers and sisters quarrel?
Why humans take risks and animals don’t?
How do we feel happiness?
How do we provide education for students with severe behavior problems?
If our brain helps us learn from our mistakes why do some people do it again?
Why do humans ask questions?
If humans get feelings from art why doesn’t art have feelings?
Why do we feel good when we are hugging our loved ones?
Why we start laughing if someone else is laughing?
What is the origin of happiness and why is it important?